Prolonged grief in relatives of deceased patients due to COVID-19 is associated with anxiety and depressive symptoms: A survey-based study in Peru.

Objective: Funeral practices have undergone significant changes during the COVID-19 pandemic. Thus, the death of a family member from this disease has altered the typical course of the bereavement process. Therefore, this study seeks to determine the relationship between the levels of grief, anxiety, and depression in relatives of patients who died from COVID-19 in Peru. Methods: A total of 250 volunteers were obtained, but after applying the inclusion criteria and not being able to contact five of them, the sample consisted of 115 participants over 18 years of age who lost a family member to COVID-19 between 2020 and 2021. They developed the Prolonged Grief Questionnaire-13 and the Zung Anxiety and Depression Questionnaires, in virtual surveys using Google FormTM (Google, CA). Results: Our analysis revealed that all cases of anxiety (18.3%) were present in individuals experiencing prolonged grief (76.5%), while 49.5% (57/115) of participants exhibited symptoms of depression. Furthermore, we identified a significant association between prolonged grief and both anxiety (p = 0.005) and depression (p < 0.001). Prolonged grief predominantly affected females (45.2%) and individuals aged 31-40 years (28.7%) (p < 0.001). Regarding predictors of anxiety symptoms, we found that both age group (p = 0.035) and grief (p < 0.001) played significant roles. Gender (p = 0.019) and grief (p < 0.001) emerged as predictors of depression, while gender alone predicted grief in relatives of individuals who succumbed to COVID-19 (p = 0.019). Conclusion: Our results suggest a clear association between prolonged grief and mental health issues among relatives of COVID-19 patients who have passed away. Consequently, it is imperative to provide comprehensive psychological and spiritual support throughout the grieving process, aiming to mitigate the negative impact of traumatic events.

Stability, Content of Bioactive Compounds and Antioxidant Activity of Emulsions with Propolis Extracts during Simulated In Vitro Digestion.

The objective in this work was the evaluation of the stability and content of bioactive compounds (total phenols and total flavonoids) and antioxidant activity of emulsions of ethanolic extracts of propolis obtained by ultrasound, during simulated in vitro digestion. The emulsions prepared with propolis extracts were evaluated on certain properties: their emulsion efficiency, stability (zeta potential, particle size, electrical conductivity), content of bioactive compound (total phenolics and total flavonoids), antioxidant activity and their behavior during simulated in vitro digestion. Based on the total phenol content, an emulsification efficiency of 87.8 ± 1.9% to 97.8 ± 3.8% was obtained. The particle size of the emulsions was 322.5 ± 15.33 nm to 463.9 ± 33.65 nm, with a zeta potential of -31.5 ± 0.66 mV to -28.2 ± 1.0 mV and electrical conductivity of 22.7 ± 1.96 µS/cm to 30.6 ± 0.91 µS/cm. These results indicate good emulsion stability. During simulated in vitro digestion, the content of bioactive compounds (total phenolics, total flavonoids) and antioxidant activity were affected during 77 days of storage at 4 °C. It was concluded that the emulsion process fulfills the function of protecting the bioactive compounds and therefore their biological activity.

Association of Subjective Cognitive Decline With Progression to Dementia in a Cognitively Unimpaired Multiracial Community Sample.

BACKGROUND AND OBJECTIVES: This prospective study seeks to examine the utility of subjective cognitive decline (SCD) as a marker of future progression to dementia in a community-based cohort of non-Latinx White, non-Latinx Black, and Latinx individuals. Debate surrounds the utility of SCD, the subjective perception of decline in one's cognition before such impairment is evident in traditional neuropsychological assessments, as an early indicator of impending Alzheimer disease. Unfortunately, most studies examining SCD have been conducted in non-Latinx White samples and commonly exclude groups of individuals shown to be most vulnerable to dementia. METHODS: Participants were enrolled into this cohort study from the Washington Heights-Inwood Columbia Aging Project if they were cognitively unimpaired, had baseline measurement of SCD, and self-identified as non-Latinx White, non-Latinx Black, or Latinx. SCD was measured as a continuous sum of 10 items assessing cognitive complaints. Competing risk models tested the main effects of baseline SCD on progression to dementia. Models were adjusted for age, sex/gender, years of education, medical comorbidity burden, enrollment cohort, and baseline memory test performance with death jointly modelled as a function of race/ethnicity. RESULTS: A total of 4,043 (1,063 non-Latinx White, 1,267 non-Latinx Black, and 1,713 Latinx) participants were selected for this study with a mean age of 75 years, 67% women, and with a mean follow-up of 5 years. Higher baseline SCD was associated with increased rates of incident dementia over time in the full sample (hazard ratio [HR] 1.085, CI 1.047-1.125, p < 0.001) and within Latinx (HR 1.084, CI 1.039-1.130, p < 0.001) and non-Latinx Black individuals (HR 1.099, CI 1.012-1.194, p = 0.024). DISCUSSION: Overall results of this study support SCD as a prodromal marker of dementia in a multiracial community sample, and in Latinx and non-Latinx Black individuals in particular. Because models examining the risk of dementia were adjusted for baseline memory test performance, the results support the idea that SCD, a subjective reflection of one's own current cognitive functioning, contributes information above and beyond standard memory testing. Current findings highlight the importance of carefully evaluating any memory concerns raised by older adults during routine visits and underscore the potential utility of screening older adults for SCD.

Consecuencias psicológicas del abuso sexual infantil cometido por representantes de la Iglesia Católica: Una revisión sistemática de la literatura / Psychological consequences of child sexual abuse by Catholic Church representatives: A systematic review of literature

El objetivo de esta revisión sistemática de la literatura sobre abuso sexual eclesiástico fue identificar el impacto psicológico de este tipo de violencia en las víctimas. Las búsquedas iniciales se realizaron entre el 10 de octubre de 2020 y el 17 de diciembre de 2020. Así, la actualización de búsquedas se realizó entre el 26 de octubre de 2020 y el 23 de enero de 2021. Los artículos incluidos se obtuvieron desde las bases de datos PsycINFO, Web of Science (WoS) y Scopus. Se establecieron criterios de inclusión, y se realizó una selección inicial por medio de los títulos y resúmenes, los cuales, fueron examinados por dos revisores de forma independientes. Los documentos seleccionados se examinaron utilizando el mismo proceso de revisores. Se incluyeron 18 estudios de 2.189 títulos y resúmenes revisados. En general, los estudios evidenciaron un impacto psicológico negativo posterior al abuso sexual infantil ocurrido en contextos eclesiásticos. Destacando el daño espiritual como una característica específica del abuso sexual eclesiástico, lo que, sumado, a las consecuencias habituales del abuso sexual, sitúa a las víctimas en una posición compleja al presentar un espectro más amplio de efectos negativos posteriores al abuso. Los hallazgos del presente estudio permiten una mejor comprensión de este problema y entregan antecedentes para el desarrollo de estrategias de recuperación adecuadas a las necesidades de estas víctimas.

The objective of this systematic review of the literature on ecclesiastical sexual abuse was to identify the psychological impacts of this type of violence on victims. The initial literature searches were conducted between October 10, 2020 and December 17, 2020. Thus, the update of searches was conducted between October 26, 2020 and January 23, 2021. The articles included were obtained from the PsycINFO, Web of Science (WoS) and Scopus databases. Inclusion criteria were established, and an initial selection was made by means of titles and abstracts, which were examined by two reviewers independently. The selected papers were examined using the same reviewer process. Eighteen studies were included out of 2,189 titles and abstracts reviewed. Overall, the studies evidenced a negative psychological impact following child sexual abuse occurring in church settings. Highlighting spiritual harm as a specific feature of ecclesiastical sexual abuse, which, in addition to the usual consequences of sexual abuse, places victims in a complex position of presenting a broader spectrum of negative effects following abuse. The findings of the present study allow a better understanding of this problem and provide background for the development of recovery strategies appropriate to the needs of these victims.

Ideación y conducta suicida en adolescentes españoles durante la pandemia COVID-19: Un estudio exploratorio / Suicidal ideation and behaviour in Spanish adolescents during the COVID-19 pandemic: An exploratory study

Introducción: La pandemia derivada del SARS-CoV-2 y susmedidas de contención, principalmente el distanciamientofísico y el aislamiento, están teniendo consecuenciasperjudiciales para la salud mental de la poblacióninfantojuvenil en todo el mundo.Objetivo. El objetivo fue identificar aquellas variablessociodemográficas, de victimización y de resiliencia asociadascon la conducta suicida en adolescentes españoles desde elinicio de la pandemia.Metodología. La muestra la configuran 163 adolescentes,de 14 a 17 años (M = 15,81; DT = 1,03). Los participantescompletaron la escala DetectaWeb-Distress, el JuvenileVictimization Questionnaire y el Adolescent ResilienceQuestionnaire para la evaluación de la tendencia al suicidio,la victimización y la resiliencia, respectivamente.Resultados. Un 20,8% del total de participantes expresaronhaber pensado en quitarse la vida desde el inicio delconfinamiento. Otro 22,6% expresó haber pensado en algúnmétodo para hacerlo. Por último, un 7,4% expresó haberintentado quitarse la vida. Las víctimas de victimizaciónpsicológica tuvieron cinco veces más posibilidades depresentar conducta suicida y, por el contrario, recibir apoyodel entorno confirió resistencia ante el suicidio.Conclusiones. Este estudio ofrece evidencia preliminar deque la pandemia COVID-19 puede estar contribuyendo ala conducta suicida en adolescentes españoles. Si bien aúnes pronto para reconocer con seguridad la profunda huella de la pandemia en diferentes ámbitos y, en particular, enlas muertes autoprovocadas, es incuestionable que la crisisde salud ha revelado la urgente necesidad de diseñar eimplementar planes de prevención del suicidio. (AU)

Background: The COVID-19 pandemic and its relatedcontainment measures, mainly physical distancingand isolation, are having detrimental consequences onthe mental health of the juvenile infant populationworldwide. Objective. The objective was to identify thosesociodemographic variables, victimization and resilienceassociated with suicidal behavior in Spanish adolescentssince the beginning of the pandemic.Method. The sample was comprised by 163 adolescents, aged14 to 17 years (M = 15.81; SD = 1.03). Participants completedThe DetectaWeb-Distress scale, the Juvenile VictimizationQuestionnaire, and the Adolescent Resilience Questionnairefor assessment of suicidality, victimization and resilience,respectively.Results. 20.8% of the total participants expressed havingthought about taking their own lives since the beginningof the confinement. Another 22.6% expressed havingthought of some form or method to kill themselves. Finally,7.4% expressed having tried to kill themselves. Victims ofpsychological abuse were five times more likely to presentsuicidal behavior and, on the contrary, to receive supportfrom the environment confirmed resistance to suicide Conclusions. This study offers preliminary evidence thatthe COVID-19 pandemic may be contributing to suicidalbehaviors in Spanish adolescents. Although it is still tooearly to safely recognize the deep footprint of the pandemicin different areas and, in particular, in self-caused death, it isunquestionable that the health crisis has revealed the urgentneed to design and implement suicide prevention plans. (AU)

Can fluoxetine mitigate mental health decline in musculoskeletal trauma patients: a pilot single-center randomized clinical trial.

BACKGROUND: Musculoskeletal trauma is one of the leading causes of disability in the USA and its negative quality of life impact extends beyond that of physical recovery. More than 50% of victims of musculoskeletal trauma suffer lasting mental health issues and post-traumatic stress disorder (PTSD) symptomology following their injury. These symptoms can develop across all spectrums of patients and are independent predictors of poor outcome. Access to mental health care is limited, expensive, and time intensive, and a large majority of the trauma population do not get to utilize this valuable resource. This leaves the burden of management on the orthopedic team, as they are often the only point of contact for the patient within the medical system. METHODS: This is a single-center, repeated measures, randomized controlled pilot study including up to 100 orthopedic trauma patients aged between 18 and 85 years of age. Subjects are approached during their index hospitalization and are randomized to one of two pharmaceutical interventions, fluoxetine (also known as Prozac) or calcium, for 9 months. Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) that is supported for the treatment of PTSD by the American Psychiatric Association. It is low-cost and has minimal side effects and withdrawal symptoms if stopped suddenly. Calcium is a supplement with minimal side effects that is used in our study for its bone-healing potential. Feasibility will be indexed by recruitment feasibility, randomization feasibility, medical adherence, anti-depressant side effects, and fracture union rate. Subjects will complete physical and mental health surveys at baseline, 2 weeks, 6 weeks, 3 months, 6 months, and 1 year. DISCUSSION: The goals of this exploratory clinical trial are to: develop a safe, feasible, and time-limited protocol effect of immediate (post-injury) treatment with fluoxetine for use by orthopedic providers and other non-mental health care providers treating victims of musculoskeletal trauma (Aim 1), and test the for preliminary effects of the protocol on development of PTSD symptomology and physical recovery in these patients (Aim 2). This study is novel in that it strives to prevent the development of symptomology from the time of injury and empowers surgeons to manage their patients in a more holistic manner. TRIAL REGISTRATION: ClinicalTrials.gov, NCT04850222 . Registered on April 20, 2021.

Racial and Ethnical Diversity Within the Neurosurgery Resident and Faculty Workforce in the United States.

BACKGROUND: Promoting workplace diversity leads to a variety of benefits related to a broader range of perspectives and insights. Underrepresented in medicine (URiM), including African Americans, Latinx, and Natives (Americans/Alaskan/Hawaiians/Pacific Islanders), are currently accounting for approximately 40% of the US population. OBJECTIVE: To establish a snapshot of current URiM representation within academic neurosurgery (NS) programs and trends within NS residency. METHODS: All 115 NS residencies and academic programs accredited by the Accreditation Council for Graduate Medical Education in 2020 were included in this study. The National Residency Matching Program database was reviewed from 2011 to 2020 to analyze URiM representation trends over time within the NS resident workforce. The academic rank, academic and clinical title(s), subspecialty, sex, and race of URiM NS faculty (NSF) were obtained from publicly available data. RESULTS: The Black and Latinx NS resident workforce currently accounts for 4.8% and 5.8% of the total workforce, respectively. URiM NSF are present in 71% of the Accreditation Council for Graduate Medical Education-accredited NS programs and account for 8% (148 of 1776) of the workforce. Black and Latinx women comprise 10% of URiM NSF. Latinx NSFs are the majority within the URiM cohort for both men and women. URiM comprise 5% of all department chairs. All are men. Spine (26%), tumor (26%), and trauma (17%) were the top 3 subspecialties among URiM NSF. CONCLUSION: NS has evolved, expanded, and diversified in numerous directions, including race and gender representation. Our data show that ample opportunities remain to improve URiM representation within NS.

Suicidal ideation and behaviour in Spanish adolescents during the COVID-19 pandemic: an exploratory study.

The COVID-19 pandemic and its related containment measures, mainly physical distancing and isolation, are having detrimental consequences on the mental health of the juvenile infant population worldwide.

Bioactive Compounds of Opuntia spp. Acid Fruits: Micro and Nano-Emulsified Extracts and Applications in Nutraceutical Foods.

The acid fruit of the "xoconostle" cactus belongs to the genus Opuntia family of cacti. It is used as a functional food for its bioactive compounds. Several studies reported that xoconostle fruits have a high amount of ascorbic acid, betalains, phenols, tannins, and flavonoids. These compounds confer antioxidant, antibacterial, anti-inflammatory, and hepatoprotective gastroprotective activity. Xoconostle fruit extracts were tested by in vitro assays where the digestion conditions were simulated to measure their stability. At the same time, the extracts were protected by encapsulation (microencapsulation, multiple emulsions, and nanoemulsions). Applications of encapsulated extracts were probed in various food matrices (edible films, meat products, dairy, and fruit coatings). The xoconostle is a natural source of nutraceutical compounds, and the use of this fruit in the new food could help improve consumers' health.

An apparent core/shell architecture of polyQ aggregates in the aging Caenorhabditis elegans neuron.

Huntington's disease is caused by a polyglutamine (polyQ) expansion in the huntingtin protein which results in its abnormal aggregation in the nervous system. Huntingtin aggregates are linked to toxicity and neuronal dysfunction, but a comprehensive understanding of the aggregation mechanism in vivo remains elusive. Here, we examine the morphology of polyQ aggregates in Caenorhabditis elegans mechanosensory neurons as a function of age using confocal and fluorescence lifetime imaging microscopy. We find that aggregates in young worms are mostly spherical with homogenous intensity, but as the worm ages aggregates become substantially more heterogeneous. Most prominently, in older worms we observe an apparent core/shell morphology of polyQ assemblies with decreased intensity in the center. The fluorescence lifetime of polyQ is uniform across the aggregate indicating that the dimmed intensity in the assembly center is most likely not due to quenching or changes in local environment, but rather to displacement of fluorescent polyQ from the central region. This apparent core/shell architecture of polyQ aggregates in aging C. elegans neurons contributes to the diverse landscape of polyQ aggregation states implicated in Huntington's disease.

The Addition of Microencapsulated or Nanoemulsified Bioactive Compounds Influences the Antioxidant and Antimicrobial Activities of a Fresh Cheese.

The objective of this study was to compare the effects of the incorporation of microcapsules or nanoemulsions with Opuntiaoligacantha on the quality of fresh cheese. Three treatments were established: Control, cheese with microcapsules (Micro), and cheese with nanoemulsion (Nano). The parameters evaluated were physicochemical (moisture, ash, fat, proteins, and pH), microbiological (mesophilic aerobic bacteria, mold-yeast, and total coliforms), functional (total phenols, flavonoids, and antioxidant capacity), and texture (hardness, elasticity, cohesion, and chewiness) during storage for 45 days at 4 °C. The results showed that adding microcapsules and nanoemulsion did not affect the physicochemical parameters of the cheese. Total coliforms decreased in all samples from the first days of storage (Control: 4.23 ± 0.12, Micro: 3.27 ± 0.02, and Nano: 2.68 ± 0.08 Log10 CFU), as well as aerobic mesophiles and mold-yeast counts. Regarding the functional properties, an increase in total phenols was observed in all treatments. The texture profile analysis showed that the addition of microcapsules and nanoemulsion influenced hardness (Control: 8.60 ± 1.12, Micro: 1.61 ± 0.31, and Nano: 3.27 ± 0.37 N). The antimicrobial effect was greater when nanoemulsions were added, while adding microcapsules influenced the antioxidant activity more positively.

Calidad de vida y funcionamiento familiar en adolescentes con depresión de centros chilenos de salud pública / Quality of life and family functioning in adolescents with depression in Chilean public health centres / Qualitat de Vida I Funcionament Familiar a adolescents amb depressió de centres xilens de salut pública

Calidad de Vida Relacionada con la Salud (CVRS) hace referencia a las valoraciones de la percepción de la salud por parte de una persona, recogiendo aspectos objetivos y subjetivos. Participaron 40 adolescentes con diagnóstico de depresión, procedentes de diez centros de salud pública de Chile. Se evaluaron las características del funcionamiento familiar y la CVRS en torno a diez dimensiones. Los resultados sugieren la importancia de obtener un tratamiento integral, que no apunte únicamente a lo sindromático, sino también a la funcionalidad, otorgando una noción esencial en el quehacer clínico infanto-juvenil

Health-Related Quality of Life (HRQOL) refers to a person's perception of health, including both objective and subjective aspects. Forty adolescents with a diagnosis of depression from ten public health centres in Chile participated. Characteristics of family functioning and HRQOL were assessed along ten dimensions. The results suggest the importance of obtaining a comprehensive treatment that does not only focus on syndromes, but also on functio­nality, which is an essential notion in the clinical work of children and adolescents

Qualitat de Vida Relacionada amb la Salut (QVRS) fa referència a les valoracions de la percepció de la salut per part d'una persona I recull aspectes objectius I subjectius. Van participar-hi 40 adolescents amb diagnòstic de depressió, procedents de deu centres de salut pública de Xile. Es van avaluar les característiques del funcionament familiar I de la QVRS al voltant de deu dimensions. Els resultats suggereixen la importància d'obtenir un tractament inte­gral, que no apunti únicament al que és sindròmic, sinó també a la funcionalitat, que atorgui una noció essencial en l'afer clínic infantil I juvenil

Polivictimización, resiliencia y conductas suicidas en adolescentes atendidos por el sistema de protección y justicia juvenil en Cataluña / Poly-victimization, resilience and suicidal behaviour in adolescents assisted by the Catalan juvenile protection and justice system / Polivictimització, resiliència i conductes suïcides en adolescents atesos pel sistema de protecció i justícia juvenil a Catalunya

Este estudio busca analizar la relación entre la polivictimización, los factores de resiliencia y las conductas suicidas (ideación suicida y/o comportamiento de autolesión) en un grupo de 227 (145 varones y 82 mujeres) adolescentes atendidos por el sistema de protección y justicia juvenil español. Con edades comprendidas entre los 12 y los 17 años (M = 15,26; DT = 1,54). Los resultados indicaron que un 39,6 % de los adolescentes informaron haber presentado conductas suicidas de algún tipo en los últimos seis meses. Se hallaron diferencias en cuanto al tipo de centro, a la edad y al género. La polivictimización fue un predictor significativo de las conductas suicidas, y los factores de resiliencia asociados al individuo contribuyen a reducir el riesgo de conductas suicidas

This study aims at analysing the relationship between poly-victimization, resilience factors and suicidal behaviour (suicidal ideation and/or self-injurious behaviour) in a group of 227 teenagers (145 Male and 82 Female), assisted by the Spanish juvenile protection and justice system. They were aged between 12 and 17 (M = 15,26; TD = 1,54). The results indicated that 39.6 % of the adolescents had reported having had some kind of suicidal behaviour in the last six months. We noticed differences depending on their reception centre, their age and gender. Poly-victimization was a significant predictor of suicidal behaviour. The resilience factors contribute to reducing the risk of suicidal behaviour

Aquest estudi busca analitzar la relació entre la polivictimització, els factors de resiliència I les conductes suïcides (ideació suïcida I / o comportament d'autolesió) en un grup de 227 (145 homes I 82 dones) adolescents atesos pel sistema de protecció I justícia juvenil espanyol, amb edats compreses entre els 12 I els 17 anys (M = 15,26; DT = 1,54). Els resultats van indicar que un 39,6 % dels adolescents van informar haver presentat conductes suïcides d'algun tipus en els últims sis mesos. Es van trobar diferències quant al tipus de centre, a l'edat I al gènere. La polivictimització va ser un predictor significatiu de les conductes suïcides, I els factors de resiliència associats a l'individu contribueixen a reduir-ne el risc

Role of Epstein-Barr Virus in Glioblastoma.

Gliomas are the most common and most lethal primary malignant adult brain tumors, and glioblastomas are the most frequent. Several risk factors are involved in their pathogenesis; these include environmental factors as well as host factors. The etiology of most gliomas remains unknown. Epstein-Barr Virus (EBV), a member of the Herpesviridae family, was the first tumoral virus to be described, and several viruses in connection with cancer were discovered thereafter. During the complex interaction between host and EBV, several events take place. In the context of survival, EBV can drive its host cells with subsequent disruption of the cellular machinery, leading to tumorigenesis as the final outcome. Thus, the EBV infection has been associated with different tumors. In this review, we discuss EBV and cancer. We have analyzed previously published papers and have conducted a critical analysis on the role of the viral infection in glioblastoma. Several works have described the presence of the virus, but none have shown a conclusive association. Thus, there is need to continue analyzing the interaction between host and virus to determine whether the viral presence is incidental or has some association with glioblastoma.

Bioinformatics prediction of siRNAs as potential antiviral agents against dengue viruses.

Dengue virus (DENV 1-4) represents the major emerging arthropod-borne viral infection in the world. Currently, there is neither an available vaccine nor a specific treatment. Hence, there is a need of antiviral drugs for these viral infections; we describe the prediction of short interfering RNA (siRNA) as potential therapeutic agents against the four DENV serotypes. Our strategy was to carry out a series of multiple alignments using ClustalX program to find conserved sequences among the four DENV serotype genomes to obtain a consensus sequence for siRNAs design. A highly conserved sequence among the four DENV serotypes, located in the encoding sequence for NS4B and NS5 proteins was found. A total of 2,893 complete DENV genomes were downloaded from the NCBI, and after a depuration procedure to identify identical sequences, 220 complete DENV genomes were left. They were edited to select the NS4B and NS5 sequences, which were aligned to obtain a consensus sequence. Three different servers were used for siRNA design, and the resulting siRNAs were aligned to identify the most prevalent sequences. Three siRNAs were chosen, one targeted the genome region that codifies for NS4B protein and the other two; the region for NS5 protein. Predicted secondary structure for DENV genomes was used to demonstrate that the siRNAs were able to target the viral genome forming double stranded structures, necessary to activate the RNA silencing machinery.

Effects of polymorphisms in ovine and caprine prion protein alleles on cell-free conversion.

In sheep polymorphisms of the prion gene (PRNP) at the codons 136, 154 and 171 strongly influence the susceptibility to scrapie and bovine spongiform encephalopathy (BSE) infections. In goats a number of other gene polymorphisms were found which are suspected to trigger similar effects. However, no strong correlation between polymorphisms and TSE susceptibility in goats has yet been obtained from epidemiological studies and only a low number of experimental challenge data are available at present. We have therefore studied the potential impact of these polymorphisms in vitro by cell-free conversion assays using mouse scrapie strain Me7. Mouse scrapie brain derived PrPSc served as seeds and eleven recombinant single mutation variants of sheep and goat PrPC as conversion targets. With this approach it was possible to assign reduced conversion efficiencies to specific polymorphisms, which are associated to low frequency in scrapie-affected goats or found only in healthy animals. Moreover, we could demonstrate a dominant-negative inhibition of prion polymorphisms associated with high susceptibility by alleles linked to low susceptibility in vitro.

Behavioral factors of patients before and after diagnosis with melanoma: a cohort study - are sun-protection measures being implemented?

Melanoma is the deadliest form of all skin cancers and is highly linked to sun-related behavior in patients. However, sun-protection behavior to prevent melanoma in this population has been shown to be inadequate to date. The objective of this study was to compare changes in sun protection habit before and after patients' diagnosis with malignant melanoma. The study also seeks patients' advice on how to improve public education on melanoma prevention. A retrospective survey study was conducted on 68 respondents of patients diagnosed with melanoma from six different dermatologic practices in various boroughs of New York and Long Island in the state of New York by telephone interviews. There was a significant positive change in patients' sun-protection behavior after they were diagnosed with melanoma. Various methods of sun protection, such as avoiding sun exposure, applying and reapplying sunscreen, and wearing protective clothing were practiced more frequently after diagnosis. In addition, the frequency of sunbathing decreased drastically. Most patients were aware about the dangers of sun exposure before their diagnosis. They, however, did not feel the need to adopt sun-protection measures before their diagnosis. Respondents advised that education on dangers to excess sun exposure should be provided at an early age through multiple venues. The study reflected that 71% of diagnosed patients who completed the survey were informed about sun protection before their diagnosis. Many patients did not follow strict guidelines to prevent sun damage as shown by their behaviors before diagnosis. Diagnosis of the disease was apparently the main motivating factor to initiate challenging behavioral changes.

Perfil inmunológico de enfermedades inflamatorias del intestino / Immunologic profile and ischemic cardiopathy

Se estudió la función linfocitaria mediante la activación de los linfocitos en cultivo por efecto de la fitohemaglutinina y las distintas poblaciones linfoides en sangre periférica. Se cuantificaron las inmunoglobulinas séricas y la IgA, IgG e IgM. Se determinaron los niveles de inmunocomplejos circulantes en 22 pacientes con enfermedad de Crohn y 23 con colitis ulcerativa, de ambos sexos, con diagnóstico clínico, endoscópico, radiológico e histológico.No se observaron alteraciones de la actividad linfocitaria en ninguno de los e grupos estudiados, hubo disminució de las subpoblaciones T3 (CD3) y T4 (CD4) en ambos grupos, la cual resultó significativa para el grupo con colitis ulcerativa. La IgA y la IgM tendieron a estar elevadas, así como los inmunocomplejos circulantes

Perfil inmunologico de enfermedades inflamatorias del instestino / s. t

Se estudió la función linfocitaria mediante la activación de los linfocitos en cultivo por efectos de la fitohemaglutinina y las distintas poblaciones linfoides en sangre periférica. Se cuantificaron las inmunoglobulinas séricas y la IgA, IgG e IgM. Se determinaron los niveles de inmunocomplejos circulantes en 22 pacientes con enfermedad de Crohn y 23 con colitis ulcerativa, de ambos sexos, con diagnóstico clínico, endoscópico, radiológico e histológico. No se observaron alteraciones de la actividad linfocitaria en ninguno de los 2 grupos estudiados, hubo disminución de las subpoblaciones T3 (CD3) y T4 (CD4) en ambos grupos, la cual resultó significativa para el grupo con colitis ulcerativa. La IgA y la IgM tendieron a estar elevadas, así como los inmunocomplejos circulantes(AU)

Perfil inmunológico de enfermedades inflamatorias del intestino / Immunologic profile and ischemic cardiopathy

Se estudió la función linfocitaria mediante la activación de los linfocitos en cultivo por efecto de la fitohemaglutinina y las distintas poblaciones linfoides en sangre periférica. Se cuantificaron las inmunoglobulinas séricas y la IgA, IgG e IgM. Se determinaron los niveles de inmunocomplejos circulantes en 22 pacientes con enfermedad de Crohn y 23 con colitis ulcerativa, de ambos sexos, con diagnóstico clínico, endoscópico, radiológico e histológico.No se observaron alteraciones de la actividad linfocitaria en ninguno de los e grupos estudiados, hubo disminució de las subpoblaciones T3 (CD3) y T4 (CD4) en ambos grupos, la cual resultó significativa para el grupo con colitis ulcerativa. La IgA y la IgM tendieron a estar elevadas, así como los inmunocomplejos circulantes